WO2010139153A1

WO2010139153A1 - Method for obtaining cell location, locating service apparatus and system

Info

Publication number: WO2010139153A1
Application number: PCT/CN2009/074511
Authority: WO
Inventors: 杨奎
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-06-01
Filing date: 2009-10-19
Publication date: 2010-12-09
Also published as: CN101600149A; CN101600149B; CA2762913A1; HK1164611A1; US8412233B2; CA2762913C; MX2011012792A; EP2424316A1; US20120077487A1; EP2424316B1; EP2424316A4

Abstract

A method for obtaining a cell location, a locating service apparatus and system are provided in the resent invention in mobile communication field. The said obtaining method includes: the locating service apparatus receiving a locating request with the identifier of the cell where the first terminal locates from the first terminal; the service locating apparatus judging whether location information of the cell corresponding to the identifier of the cell stores in a base station database of the locating service apparatus and generating a judgment result; if the judgment result is no, the locating service apparatus sending the first locating request to the first terminal; the locating service apparatus receiving the first location information from the first terminal, the first location information is the location information that the first terminal returns after it performs locating based on the first location information; and the locating service apparatus storing the first location information as the cell location information corresponding to the identifier of the cell. The present invention could be applied to locate the cell location of the terminal in a roaming state.

Description

Cell location acquisition and location method, location service device and system

Technical field

The present invention relates to the field of mobile communications, and in particular to a method for acquiring and locating a cell location, a location service device, and a system.

Background technique

Location Based Services (LBS), also known as mobile location service or location service, refers to a mobile network acquiring geographic location information of a mobile terminal through a specific positioning technology, that is, latitude and longitude coordinates, and providing it to mobile terminal users and communication. The system or a third party, with the support of certain electronic map information, provides mobile terminal users with call or non-call services related to their location.

The positioning method of the mobile communication network includes cell-based positioning, based on traditional GPS (Global Positioning System) positioning and AGPS (Network-Assisted GPS) positioning. Among them, AGPS positioning is a kind of positioning method that combines GPS positioning and mobile communication system. It is widely used because of its fast positioning speed and high positioning accuracy.

Currently, in the Secure User Plane Location (SUPL) of OMA (Open Mobile Alliance), the terminal-initiated positioning process is as follows:

Step 1. The AGPS positioning application on the terminal connects to the AGPS Location Service Platform (LSP) through the packet data domain, and sends a SUPL START message requesting positioning;

Step 2: The location service device searches for the location information of the cell where the terminal is located by using the CELL ID (cell identity) information carried in the SUPL START message (the base station database is used to store the cell identifier and the corresponding cell location information), and finds After the location information, the current location of the terminal can be known. Through this coarse position, combined with its own GPS reference information, the auxiliary data is calculated and sent to the terminal;

Step 3: The terminal captures the GPS satellite signal according to the received GPS auxiliary information, and quickly determines Location. For the specific positioning method, refer to the OMA-TS-ULP (Open Mobile Alliance - technology specification-User Plane Location Protocol).

The cell-based positioning process is as follows:

Step 1. The positioning service provider (SP) sends a positioning request to the positioning service device to request positioning of an end user.

Step 2: After receiving the request, the location service device sends a location request to the HLR (Home Location Register), and the HLR returns the CELL cell information of the terminal.

Step 3: After receiving the CELL cell information of the terminal, the positioning service device searches the base station database to obtain the CELL location where the terminal is located.

Step 4: The location service device sends the location of the CELL where the terminal is located to the service provider. In the above two positioning processes, the current cell location of the terminal needs to be obtained by searching the base station database. However, it is difficult for the base station database to obtain the cell location information of all mobile networks in the world, and the information is updated in time and accurately. If the terminal is in the roaming state (the cell location information of the terminal location is not found in the base station database), and the base station database does not have the base station information of the roaming place where the terminal is located, the correct cell location cannot be obtained, resulting in the positioning failure. Therefore, the location information of the cell in which the terminal in the roaming state is located cannot be located.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method for acquiring a cell location, a positioning service device, and a system, which can locate location information of a cell in which a terminal in a roaming state is located.

In order to solve the above technical problem, the embodiments of the present invention provide the following technical solutions:

In one aspect, a method for obtaining a cell location is provided, including:

The location service device receives, from the first terminal, a location request that carries an identifier of a cell where the first terminal is located;

The location service device determines whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, and generates a determination result; And when the determining result is no, the positioning service device sends a first positioning request to the first terminal; the positioning service device receives first location information from the first terminal, where the first location information is The first terminal performs position information returned after positioning according to the first positioning request; and the positioning service device stores the first location information as cell location information corresponding to the identifier of the cell;

Thereby, the location information of the cell where the terminal in the roaming state is located is obtained.

In the method for acquiring a cell location, the step of the location service device sending a first location request to the first terminal includes: the location service device sending a first location including a GPS satellite almanac to the first terminal Request

The first location information is: first location information generated by the first terminal to perform GPS positioning according to the GPS satellite almanac.

The method for obtaining the location of the cell further includes:

The location service device sends a second location request to the second terminal, where the second terminal is in the cell where the first terminal is located;

The location service device receives second location information from the second terminal, where the second location information is location information after the second terminal performs positioning according to the second location request; a location information and the second location information to generate third location information;

The location service device updates the cell location information using the third location information.

The method for acquiring the cell location, before the step of the location service device transmitting the second location request to the second terminal, further includes: the location service device calculating the GPS assistance information according to the first location information;

The step of the location service device sending the second location request to the second terminal is specifically: the location service device sends a second location request including the GPS assistance information to the second terminal;

The second location information is: the second terminal performs GPS according to the GPS assistance information Locate the generated location information.

In the method for acquiring a cell location, the first location information and the second location information are latitude and longitude coordinate values;

The step of the location service device generating the third location information according to the first location information and the second location information is specifically:

The location service device calculates an average value of the first location information and the second location information to generate third location information; or

The location service device generates third location information according to the appearance probability of the first location information and the second location information.

The method for obtaining the location of the cell further includes:

The location service device receives, from the cell location information first requesting device, a location request that carries an identifier of the first to-be-queried cell;

The location service device compares whether the identifier of the first to-be-queried cell is the same as the identifier of the cell where the first terminal is located;

If the same, the location service device sends the cell location information to the cell location information first requesting device;

Thereby obtaining location information of the cell to be queried.

The invention also provides a positioning service device, comprising:

a first receiving unit, configured to receive, from the first terminal, a positioning request that carries an identifier of a cell where the first terminal is located;

a determining unit, configured to determine whether cell location information corresponding to the identifier of the cell is stored in a base station database of the positioning service device, to generate a determination result;

a first sending unit, configured to: when the determining result is no, the positioning service apparatus sends a first positioning request to the first terminal;

a second receiving unit, configured to receive first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first positioning request; a storage unit, configured to store the first location information as cell location information corresponding to the identifier of the cell;

Thereby, the location information of the cell where the terminal in the roaming state is located can be obtained.

In the positioning service device, the first sending unit is further configured to send a second positioning request, where the second terminal is located in a cell where the first terminal is located;

The second receiving unit is further configured to receive the second location information from the second terminal, where the second location information is that the second terminal performs the location information after the positioning according to the second positioning request;

The location service device further includes:

a location information generating unit, configured to generate third location information according to the first location information and the second location information;

An update unit for updating the cell location information using the third location information.

The positioning service device further includes:

a third receiving unit, configured to receive, from the cell location information requesting device, a positioning request that carries an identifier of the cell to be queried;

a comparing unit, configured to compare whether an identifier of the to-be-queried cell is the same as an identifier of a cell where the first terminal is located, and generate a comparison result;

And a second sending unit, configured to send the cell location information to the cell location information first requesting device when the comparison result is the same.

In another aspect, the present invention provides a system for acquiring cell location information, including: a location service device and a first terminal;

The first terminal is configured to send, to the location service device, a location request that carries an identifier of a cell where the first terminal is located;

The location service device is configured to receive, from the first terminal, a location request that carries an identifier of the cell where the first terminal is located, and determine whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, Generating a determination result; when the determination result is no, sending a first location request to the first terminal; receiving first location information from the first terminal, where the first location information is based on the first terminal The location information returned by the first positioning request after performing positioning The first location information is stored as the cell location information corresponding to the identifier of the cell; thereby, the location information of the cell where the terminal in the roaming state is located can be obtained.

The system for acquiring cell location information, where

The first positioning request includes a GPS satellite almanac;

The first location information is location information returned by the first terminal after performing GPS positioning according to the GPS satellite almanac.

The system for obtaining cell location information further includes:

a second terminal, configured to be in a cell where the first terminal is located, and configured to receive a second positioning request sent by the positioning service device, perform positioning according to the second positioning request, and send the generated second location information Go to the location service device;

The location service apparatus is further configured to generate third location information according to the first location information and the second location information, and update location information of the cell by using the third location information.

The system for acquiring cell location information, where

The location service device is further configured to, after receiving the first location information from the first terminal, calculate GPS assistance information according to the first location information, and send the second to the second terminal Carrying the GPS auxiliary information in the positioning request;

The second terminal is further configured to perform GPS positioning based on the GPS assistance information.

The system for acquiring cell location information, where

The first location information and the second location information are latitude and longitude coordinate values;

The location service device is further configured to calculate an average value of the first location information and the second location information, generate third location information, or generate an occurrence probability according to the first location information or the second location information Generate third location information.

The system for acquiring cell location information further includes a cell location information first requesting device, where

The cell location information first requesting apparatus is configured to send, to the positioning service apparatus, a positioning request that carries an identifier of a first to-be-queried cell;

The location service device is further configured to compare the identifier of the first to-be-queried cell with the first Whether the identifiers of the cells in which the terminal is located are the same, and sending the cell location information to the first requesting device of the cell location information when the comparison result is the same;

Thereby, the location information of the cell to be queried can be obtained.

Embodiments of the present invention have the following beneficial effects:

In the foregoing solution, the location service device receives, from the first terminal, an identifier of a cell where the first terminal is located, and first location information of the first terminal in the cell, and uses the first location information as an identifier of the cell. The corresponding cell location information is stored. In the subsequent process, when the other terminal is in the roaming state and is located in the cell where the first terminal is located, the cell location information of the roaming terminal can be obtained by searching the cell location information corresponding to the cell identifier.

BRIEF abstract

1 is a schematic flowchart of an embodiment of a method for acquiring a cell location according to the present invention; FIG. 2 is a schematic flowchart of another embodiment of a method for acquiring a cell location according to the present invention; Schematic diagram of the acquisition method of the cell location applied to the application scenario of the AGPS positioning;

4 is a schematic flowchart of an embodiment of a method for locating a cell location according to the present invention; FIG. 5 is a schematic flowchart of another embodiment of a method for locating a cell location according to the present invention; A schematic structural diagram of an embodiment of a location service device;

FIG. 7 is a schematic structural diagram of another embodiment of a location service apparatus according to the present invention; FIG. 8 is a schematic structural diagram of another embodiment of a location service apparatus according to the present invention; A schematic structural diagram of an embodiment of a system for location information;

FIG. 10 is a schematic structural diagram of another embodiment of a system for acquiring cell location information according to the present invention; FIG.

11 is a schematic structural diagram of another embodiment of a system for acquiring cell location information according to the present invention; FIG. 12 is a schematic structural diagram of an application scenario of a system for acquiring cell location information according to the present invention.

Preferred embodiment of the invention

The technical problems, the technical solutions, and the advantages of the present invention will be more apparent from the following description of the embodiments of the invention.

The embodiment of the present invention provides a method for acquiring and locating a cell location, a positioning service device, and a system, for the problem that the location of the cell where the terminal is located cannot be located when the terminal is in the roaming state in the prior art.

As shown in FIG. 1 , an embodiment of a method for acquiring a cell location according to the present invention includes: Step 11: A positioning service device receives, from a first terminal, a positioning request that carries an identifier of a cell where the first terminal is located, such that The location service device may receive, from the first terminal, an identifier of a cell where the first terminal is located. Specifically, the step is: the location service device receives the location request message from the first terminal, where the location request message carries the identifier of the cell where the first terminal is located, and the location service device obtains the identifier of the cell from the location request message.

Step 12: The location service device determines whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, and generates a determination result. This step is used to determine if the first terminal is roaming.

Step 13: When the determining result is no, the positioning service device sends a first positioning request to the first terminal, so that the first terminal performs GPS positioning to generate first location information. It can be understood that the positioning service platform can confirm the positioning capability of the terminal, and receive the terminal positioning capability information from the terminal. If the first terminal has the positioning function, the positioning request is sent to the first terminal. The first terminal performs positioning according to its own GPS chip to generate first location information.

Step 14: The location service device receives first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first location request.

Step 15: The location service device stores the first location information as cell location information corresponding to the identifier of the cell. A person skilled in the art may understand that the location service device may store the first location information as the cell location information corresponding to the identifier of the cell, or send the first location information and the identifier of the cell to the local location information. The roaming location is collected and stored in the roaming location collection device.

In the foregoing solution, the location service device receives, from the first terminal, an identifier of the cell where the first terminal is located, and first location information of the first terminal in the cell, and uses the first location information as the cell. The cell location information corresponding to the identifier is stored. In the subsequent process, when the other terminal is in the roaming state and is located in the cell where the first terminal is located, the cell location information of the roaming terminal can be obtained by searching the cell location information corresponding to the cell identifier.

As shown in FIG. 2, a flow of another embodiment of a method for acquiring a cell location according to the present invention includes:

Step 21: The location service device receives, from the first terminal, a location request that carries the identity of the cell where the first terminal is located. Specifically, the step is: the location service device receives the location request message from the first terminal, where the location request message carries the identifier of the cell where the first terminal is located, and the location service device obtains the identity of the cell from the location request message.

Step 22: The location service device determines whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, and generates a determination result. Specifically, the step 22 is: the location service device searches the base station database for location information corresponding to the identity of the cell. If the result of the determination is no, that is, the location information of the cell where the first terminal is located in the base station database, the first terminal is in a roaming state, and the first terminal needs to be located. If the result of the determination is yes, the location information of the cell where the first terminal is located is obtained from the base station database, and sent to the first terminal, and the process ends.

Step 23: If the determination result is no, the positioning service device sends a first positioning request to the first terminal, so that the first terminal performs GPS positioning to generate first location information. Step 23 is specifically: the positioning service device sends a first positioning request including a GPS satellite almanac to the first terminal, so that the first terminal generates a first location information according to the GPS satellite almanac to perform GPS positioning, so that , can shorten the time required for the first terminal to locate.

Step 24: The location service device receives, from the first terminal, first location information of the first terminal in the cell, where the first location information is that the first terminal is configured according to the first location. Find the position information returned after performing positioning. Step 24 is specifically: the positioning service device receives, from the first terminal, first location information generated by the first terminal to perform GPS positioning according to the GPS satellite almanac.

Step 25: The location service device stores the first location information as cell location information corresponding to the identifier of the cell.

In the above steps of the present invention, the location information of the first terminal is used as the location information of the cell where the first terminal is located. Therefore, the stored cell location information has a certain error with respect to the actual cell location information. In order to make the stored cell location information corresponding to the identifier of the cell closer to the actual cell location, the present invention further includes the following steps:

Step 26: The positioning service device calculates GPS auxiliary information according to the first location information. Step 27: The location service device sends a second location request to the second terminal in the cell, so that the second terminal performs GPS positioning to generate second location information. The step 27 specifically includes: when the second terminal is also in the cell where the first terminal is located, the location service device sends a second location request including the GPS assistance information to the second terminal, so that the The second terminal generates the second location information by performing GPS positioning according to the GPS assistance information. The second terminal captures the GPS satellite signal according to the received GPS auxiliary information, quickly determines the position, and accelerates the time required for terminal positioning. For the content and specific positioning method of GPS auxiliary information, refer to OMA-TS-ULP.

Step 28: The location service device receives, from the second terminal, second location information of the cell that is generated by the second terminal according to the second location request. Step 28 is specifically: the positioning service device receives, from the second terminal, second location information generated by the second terminal according to the GPS assistance information for performing GPS positioning.

Step 29: The location service device generates third location information according to the first location information and the second location information. The first location information and the second location information may be latitude and longitude coordinate values. Step 29 is specifically: the positioning service device calculates an average value of the first location information and the second location information to generate third location information; or the location service device according to the first location information and the The probability of occurrence of the second location information generates third location information. It can be understood by those skilled in the art that the algorithm for generating the third location information may also be other algorithms, so that the more the terminal positioning times in the same cell are closer to the actual cell location information. Step 210: The location service device updates the cell location information by using the third location information.

FIG. 3 is a schematic diagram of an application scenario in which the location service method of the present invention is applied to AGPS positioning, where the location service device sends the first location information and the identifier of the cell to a roaming location location device. And stored in the roaming location location device. The method includes the following steps:

Step 301: The terminal user initiates a positioning request to the positioning service device, where the CELL cell identification information where the terminal is located is carried.

Step 302: The location service device searches the base station database for the location information corresponding to the cell according to the cell identity information of the terminal. If the location result is found, the GPS assistance data information required by the terminal is calculated according to the location result, and is sent to the terminal. And the terminal exchanges, the terminal completes the positioning process, and then performs step 307. If the location result is not found, step 303 is performed.

Step 303: The location service device sends a message for the roaming location location device to find the location result corresponding to the CELL, and then step 304 is performed.

Step 304: The roaming location collection device searches for the location result corresponding to the CELL identification information, and if it finds the execution step 305, otherwise performs step 310.

Step 305: The roaming location collection system returns the location result to the location service device, and then step 306 is performed.

Step 306: The location service device calculates the GPS-assisted positioning information required by the terminal according to the location result returned by the roaming location collection device, sends the information to the terminal, and performs message interaction with the terminal, and then performs step 307.

Step 307: After calculating the location result, the terminal returns the location result to the location service device, and then performs step 308.

Step 308: The location service device sends the location result to the roaming location location collection device, and then performs step 309.

Step 309: After receiving the new location result, the roaming location collection device updates the location result corresponding to the cell by using an update algorithm.

Step 310: After the roaming location location collection device cannot find the location information corresponding to the CELL, return The error message is returned to the location service device, and then step 311 is performed.

Step 311: After receiving the error message of the roaming location collection device, the location service device sends the GPS satellite almanac to the terminal to speed up the positioning time of the terminal, and then step 312 is performed.

Step 312: After receiving the GPS satellite almanac message of the location service device, the terminal locates the location result, sends the location result to the location service device, and then performs step 313.

Step 313: After receiving the location result, the location service device sends the location result and the corresponding CELL identifier information to the roaming location collection system.

Step 314: After receiving the location result, the roaming location collection system saves the location result corresponding to the CELL.

As shown in FIG. 4, an embodiment of the method for locating a cell location according to the present invention includes: Step 41: A positioning service device receives, from a first terminal, a positioning request that carries an identifier of a cell where the first terminal is located;

Step 42, the location service device determines whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, and generates a determination result;

Step 43: When the determining result is no, the positioning service apparatus sends a first positioning request to the first terminal.

Step 44: The location service device receives first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first location request.

Step 45: The location service device stores the first location information as cell location information corresponding to the identifier of the cell.

Step 46: The location service device receives, from the cell location information first requesting device, a location request that carries an identifier of the first cell to be queried;

Step 47: The location service device compares whether the identifier of the first to-be-queried cell and the identifier of the cell where the first terminal is located are the same;

Step 48: If they are the same, the location service device sends the first location information to the cell location information first requesting device. In the foregoing solution, the location service device receives, from the first terminal, an identifier of the cell where the first terminal is located, and first location information of the first terminal in the cell, and uses the first location information as the cell. The cell location information corresponding to the identifier is stored. When the cell to be queried is the cell where the first terminal is located, the location information of the cell to be queried can be obtained by searching for the cell location information corresponding to the cell identifier.

In the present invention, the location information of the first terminal is used as the location information of the cell where the first terminal is located, so that the cell location information corresponding to the stored identifier of the cell is closer to the actual cell location, as shown in FIG. 5. As shown in the figure, another embodiment of the method for locating a cell location according to the present invention further includes:

Step 49: The location service device sends a second location request to the second terminal, where the second terminal is located in a cell where the first terminal is located;

Step 410: The location service device receives second location information from the second terminal, where the second location information is that the second terminal performs the location second location information according to the second location request.

Step 411: The location service device generates third location information according to the first location information and the second location information.

Step 412: The location service device updates the cell location information by using the third location information.

Step 413: The location service device receives, from the cell location information second requesting device, a location request that carries an identifier of the second to-be-queried cell.

Step 414: The location service device compares whether the identifier of the second to-be-queried cell is the same as the identifier of the cell where the first terminal is located.

Step 415: If they are the same, the location service device sends the third location information to the cell location information second requesting device.

As shown in FIG. 6, the location service device 6 of the present invention includes:

The first receiving unit 61 is configured to receive, from the first terminal, a positioning request that carries an identifier of a cell where the first terminal is located;

The determining unit 62 is configured to determine whether the cell location information corresponding to the identifier of the cell is stored in the Generating a determination result in a base station database of the location service device;

The first sending unit 63 is configured to: when the determining result is no, the positioning service apparatus sends a first positioning request to the first terminal;

The second receiving unit 64 is configured to receive first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first positioning request; And storing, by using the first location information, cell location information corresponding to the identifier of the cell.

In the above solution, the first receiving unit 61 receives the identifier of the cell where the first terminal is located from the first terminal, and the second receiving unit 64 receives, from the first terminal, the first terminal in the first location of the cell. The information storage unit 65 stores the first location information as cell location information corresponding to the identifier of the cell. In the subsequent processing, when the terminal is in the roaming state, that is, there is no cell location information to be searched in the base station database, the location information of the cell where the roaming terminal is located can be obtained by searching the stored cell identifier and the cell information corresponding to the cell identifier. .

In the present invention, the location information of the first terminal is used as the location information of the cell where the first terminal is located, so that the cell location information corresponding to the stored identifier of the cell is closer to the actual cell location, as shown in FIG. 7. The first sending unit 63 is further configured to send a second positioning request, where the second terminal is in a cell where the first terminal is located, and the second receiving unit 64 is further configured to use the second The terminal receives the second location information, where the second location information is location information that is performed by the second terminal according to the second location request.

The location service device 6 further includes:

The location information generating unit 66 is configured to generate third location information according to the first location information and the second location information.

The updating unit 67 is configured to update the cell location information by using the third location information.

In this way, after the second terminal that is in the same cell as the first terminal performs positioning, the positioning service device can generate third location information according to the first location information and the cell location information, and use the third location. The information updates the cell location information corresponding to the cell identifier, so that the more the terminal positioning times in the same cell, the closer to the actual cell location information. Thus, the cell location information obtained by querying the location service device is closer to the actual cell location information. As shown in FIG. 8, the location service device 6 further includes:

The third receiving unit 68 is configured to receive, from the cell location information requesting device, a positioning request that carries an identifier of the cell to be queried;

The comparing unit 69 is configured to compare whether the identifier of the to-be-queried cell and the identifier of the cell where the first terminal is located are the same, and generate a comparison result;

The second sending unit 610 is configured to send the cell location information to the cell location information first requesting device when the comparison result is the same. In this way, when the cell to be queried is the cell where the first terminal is located, the location information of the cell to be queried can be obtained by searching for the cell location information corresponding to the cell identifier.

As shown in FIG. 9, the system for acquiring cell location information according to the present invention includes: a positioning service device 6 and a first terminal 8.

The first terminal 8 is configured to send, to the location service device 6, a location request that carries an identifier of a cell in which the first terminal is located;

The location service device 6 is configured to receive, from the first terminal, a location request that carries the identifier of the cell where the first terminal is located, and determine whether the cell location information corresponding to the identifier of the cell is stored in the base station database of the location service device 6. And generating a determination result; when the determination result is no, sending a first positioning request to the first terminal; receiving, by the first terminal, first location information, where the first location information is the first terminal Performing location information returned after positioning according to the first positioning request; storing the first location information as cell location information corresponding to the identifier of the cell.

In the above solution, the first terminal 8 sends the identifier of the cell where the first terminal is located and the first location information of the first terminal in the cell to the location service device 6, so that the location service device 6 A location information is stored as cell location information corresponding to the identity of the cell. In the subsequent process, when the terminal is in the roaming state, that is, there is no cell location information to be searched in the base station database, the roaming terminal can be obtained by searching the cell identifier stored by the location service device 6 and the cell information corresponding to the cell identifier. Location information of the cell.

As shown in FIG. 10, the system for acquiring cell location information further includes: a cell location information requesting device 7 configured to send, to the location service device 6, a location that carries an identifier of a cell to be queried. Request

The location service device 6 is further configured to compare whether the identifier of the to-be-queried cell is the same as the identifier of the cell where the first terminal is located, and when the same, send the cell location information to the cell location information requesting device 7. .

As shown in FIG. 11, another embodiment of the system for acquiring cell location information according to the present invention further includes: a second terminal 9. The second terminal 9 is configured to send the second location information of the second terminal in the cell to the location service device 6;

The location service device 6 is further configured to generate third location information according to the first location information and the second location information, and update the cell location information by using the third location information. The more times the terminal is located in the same cell, the closer it is to the actual cell location information. Thus, the cell location information obtained by querying the location service device 6 is closer to the actual cell location information.

The application scenario of the system for acquiring cell location information according to the present invention is described below. As shown in FIG. 12, the system for acquiring cell location information includes a terminal, a location service device, and a roaming location location device. In the application scenario, the location service device sends the first location information and the identifier of the cell to the roaming location location collection device, and stores the location information in the roaming location collection device.

The terminal is responsible for performing information interaction with the positioning service device. If it is the AGPS positioning mode, the terminal generates a positioning result by positioning the AGPS chip, and transmits the positioning result to the positioning service device.

The location service device can provide location services, including privacy authentication for requesting location messages, location capability confirmation of the location terminal, and receiving and processing location service provider (SP) location requests.

The roaming location location collecting device provides a roaming cell location query for the positioning service device, and has the function of updating the cell location information, and has a self-learning function, and can perform the cell location and the cell identifier returned by the positioning service device through a self-learning algorithm. Store or update to ensure the accuracy of the location of the roaming community. The location service device collects cell location information of the global mobile operator network through a self-learning method to implement AGPS or cell location of the terminal in a roaming state.

The following describes the interaction process between them, including:

Step 1. During the positioning process, the positioning service device receives a positioning request message for a certain terminal. Then, if it is the AGPS positioning mode, the base station database is searched according to the CELL cell identification information carried by the terminal. If it is the cell positioning mode initiated by the positioning service provider, the positioning service device sends a message to the HLR to query the cell identity information of the located terminal. Then, the base station database is searched for by the cell identification information. If the cell location information is not found, the terminal roams out of the service range of the location service device, and then step 2 is performed.

Step 2: The location service device searches for the location information corresponding to the cell identification information by the location device, and if found, returns the obtained location result to the location service device, and performs step 3, if not found. Then, the failure result is returned to the location service device, and step 4 is performed.

Step 3: After receiving the location result, if the location service device is in the AGPS location mode, the location service device calculates the GPS assistance information to be sent to the terminal according to the location result, and interacts with the terminal, and the terminal completes the positioning process, and the location terminal will The location result is returned to the location service device, and the location service device sends the location result to the roaming location location collection device, and the roaming location location collection device updates the location information corresponding to the cell by using a certain algorithm. The operation of the roaming location location device to update the CELL location result is not a simple update location result, but uses a certain algorithm. When the collected location results of the same cell are more, the obtained cell location result is more accurate, and That is to say, the more the number of times the terminal is positioned, the closer it is to the actual CELL position. If it is a cell location mode, the location service device directly returns the location result to the location service provider, and the location process ends.

Step 4: When the location service device does not obtain the location information corresponding to the current CELL of the terminal, if it is the AGPS positioning mode, the GPS satellite almanac is sent to the terminal, and the terminal locates the location result through its own GPS chip, and returns the location result to the location. The location service device, the location service device sends a location result to the roaming location location collection device, and the roaming location location collection device stores the location result corresponding to the cell. If it is a cell location mode, the location service device returns a failure message to the location service provider.

The present invention is applied to the location terminal roaming outside the service range of the location service device, and the AGPS and the cell location service can be provided by the assistance of the roaming location location device. The roaming location location collection device may be disposed in the location service device. The first terminal can be a mobile phone or the like. The positioning performed by the terminal may be a GPS positioning method or other positioning methods. Community The location information requesting device may be a positioning service provider, or may be a terminal or the like.

The method embodiment is corresponding to the device embodiment, and the portion not described in detail in the method embodiment may refer to the description of the relevant part in the device embodiment, and the partial reference method not described in detail in the device embodiment. The description of the relevant parts in the embodiment can be.

It will be understood by those skilled in the art that all or part of the steps of the foregoing embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium. When executed, the method includes the steps of the foregoing method embodiment, such as: a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (No. RAM) and so on.

In the method embodiments of the present invention, the sequence numbers of the steps are not used to limit the sequence of the steps. For those skilled in the art, the steps of the steps are performed without any creative labor. Variations are also within the scope of the invention.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Industrial applicability

The present invention is applied to the location terminal to roam outside the service range of the location service device, and the AGPS and the cell location service can be provided by the assistance of the roaming location location device. The roaming location location device may be disposed in the location service device. The first terminal can be a mobile phone or the like. The positioning performed by the terminal may be a GPS positioning method or other positioning methods. The cell location information requesting device may be a positioning service provider, or may be a terminal or the like.

Claims

Claim

A method for obtaining a cell location, comprising:

The location service device determines whether the cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device, and generates a determination result;

When the determining result is no, the positioning service device sends a first positioning request to the first terminal;

The location service device receives first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first location request; and the location service device And storing the first location information as cell location information corresponding to the identifier of the cell;

2. The method for acquiring a cell location according to claim 1, wherein

The step of the location service device transmitting the first location request to the first terminal includes: the location service device transmitting a first location request including a GPS satellite almanac to the first terminal; The step of performing positioning by the first positioning request includes: the first terminal performing GPS positioning according to the GPS satellite almanac.

The method for acquiring a cell location according to claim 1 or 2, further comprising: the location service device transmitting a second location request to the second terminal, where the second terminal is located in a cell where the first terminal is located;

The location service device receives second location information from the second terminal, where the second location information is location information after the second terminal performs positioning according to the second location request;

The location service device generates third location information according to the first location information and the second location information;

The location service device updates the cell location information corresponding to the identifier of the cell by using the third location information.

The method for acquiring a cell location according to claim 3, before the step of the location service device transmitting the second location request to the second terminal, the method further includes: the location service device calculating the GPS according to the first location information Supplementary information;

The step of the location service device sending a second location request to the second terminal is: the location service device sends a second location request including the GPS assistance information to the second terminal; the second location information And: the second terminal performs location information generated by GPS positioning according to the GPS assistance information.

5. The method for acquiring a cell location according to claim 3, wherein

The step of the location service device generating the third location information according to the first location information and the second location information is:

6. The method of any of claims 1-5, further comprising:

Thereby obtaining location information of the cell to be queried.

7. A positioning service device comprising:

a determining unit, configured to determine whether the cell location information corresponding to the identifier of the cell is stored Generating a determination result in a base station database of the location service device;

a first sending unit, configured to send a first positioning request to the first terminal when the determining result is no;

a second receiving unit, configured to receive first location information from the first terminal, where the first location information is location information returned by the first terminal after performing positioning according to the first positioning request;

a storage unit, configured to store the first location information as cell location information corresponding to the identifier of the cell;

8. The location service device according to claim 7, wherein

The first sending unit is further configured to send a second positioning request to the second terminal, where the second terminal is located in a cell where the first terminal is located;

The second receiving unit is further configured to receive second location information from the second terminal, where the second location information is location information that is performed by the second terminal according to the second positioning request; The service device also includes:

An update unit configured to update the cell location information using the third location information.

9. The location service device of claim 7 or 8, further comprising:

And a comparison unit, configured to compare whether the identifier of the to-be-queried cell and the identifier of the cell where the first terminal is located are the same, and generate a comparison result;

And a second transmitting unit, configured to send the cell location information to the cell location information first requesting device when the comparison result is the same.

10. A system for acquiring cell location information, comprising: a location service device and a first terminal; among them,

The first terminal is configured to send, to the location service device, a location request that carries an identifier of the cell where the first terminal is located;

The location service device is configured to receive, from the first terminal, a location request that carries an identifier of a cell where the first terminal is located; and determine whether cell location information corresponding to the identifier of the cell is stored in a base station database of the location service device a first location request is sent to the first terminal, and the first location information is received from the first terminal, where the first location information is the first And performing, by the terminal, the location information returned after the positioning according to the first positioning request, and storing the first location information as the cell location information corresponding to the identifier of the cell;

11. The system of claim 10, wherein

The first positioning request includes a GPS satellite almanac;

12. The system of claim 10 or 11, further comprising:

13. The system according to claim 12, wherein

14. The system of claim 13 wherein The first location information and the second location information are latitude and longitude coordinate values; the location service device is further configured to calculate an average value of the first location information and the second location information, to generate third location information, Or generating third location information according to the first location information or the probability of occurrence of the second location information.

The system according to any one of claims 10 to 14, further comprising cell location information first requesting means, wherein

The location service device is further configured to compare whether the identifier of the first to-be-queried cell is the same as the identifier of the cell where the first terminal is located, and send the location information to the first requesting device of the cell location information when the comparison result is the same Cell location information;

Thereby, the location information of the cell to be queried can be obtained.